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$332+ Cheap flights from Kingston (KIN) to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
KIN — ONT
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from Kingston to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Kingston (KIN) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 3, 2025.

Round-trip from

$675
(Trip.com)

One-way from

$332
(JetBlue)

Popular in

May

Cheapest in

June

Average price

$681
From Kingston Norman Manley to Ontario
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One-way flight from Kingston Norman Manley to Ontario
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Highest demand for flights based on searches. 4% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Kingston to Ontario

Cheapest flights from Kingston to Ontario
Explore the most affordable flight options available from Kingston to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Trip.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/255:01 amKIN - ONT
1 stop18h 58mJetBlue
Tue 8/511:59 pmONT - KIN
1 stop16h 10mJetBlue
Deal found 7/3$675
This American Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/242:34 pmKIN - ONT
2 stops11h 20mAmerican Airlines
Wed 8/66:17 amONT - KIN
2 stops11h 38mAmerican Airlines
Deal found 7/3$686
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/202:56 pmKIN - ONT
2 stops55h 37mUnited Airlines
Sun 8/316:50 pmONT - KIN
2 stops41h 03mUnited Airlines
Deal found 7/3$815
This Gotogate deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/91:45 pmKIN - ONT
2 stops29h 40mAir Canada
Sun 10/125:05 amONT - KIN
2 stops29h 30mAir Canada
Deal found 7/2$2,639

Cheapflights Fare Finder

Customize your flight search to find flights from Kingston to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
Use the filters below to find and compare flights from Kingston to Ontario that are best for you.

Fly from

Kingston

Fly to

Ontario

Route

Depart

Return

Price

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Fri 7/25

5:01 am-9:59 pm

1 stop18h 58m

Ontario

Tue 8/5

11:59 pm-6:09 pm

1 stop16h 10m

$675

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Thu 7/24

2:34 pm-11:54 pm

2 stops11h 20m

Ontario

Wed 8/6

6:17 am-7:55 pm

2 stops11h 38m

$686

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Wed 8/20

2:56 pm-8:33 pm

2 stops55h 37m

Ontario

Sun 8/31

6:50 pm-1:53 pm

2 stops41h 03m

$815

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Sat 8/30

9:09 am-9:59 pm

1 stop14h 50m

$332

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Sat 8/30

6:25 pm-7:33 am

3 stops39h 08m

$333

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Tue 7/15

6:00 am-6:08 pm

2 stops14h 08m

$433

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Thu 8/14

2:56 pm-12:14 pm

2 stops47h 18m

$470

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Sat 8/30

9:25 am-7:11 pm

1 stop11h 46m

$476

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Thu 7/24

1:45 pm-5:25 pm

2 stops29h 40m

$716

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Best time to book a flight from Kingston to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Kingston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Kingston to Ontario

What is the cheapest month to book a flight from Kingston to Ontario?

Currently, August is the cheapest month in which you can book a flight from Kingston to Ontario (average of $246). Flying from Kingston to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated July 3, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and JetBlue from Kingston to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
JetBlue
7.3
Good
2,916 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.1
Good
9,681 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Kingston to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Kingston to Ontario round-trip?

    According to our current data, JetBlue ($675), American Airlines ($686), and United Airlines ($815) offers the cheapest pricing from Kingston to Ontario.

  • What are the cheapest airlines to fly from Kingston to Ontario one-way?

    $332 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $433 and $470, respectively.

  • Can I find deals for flights from Kingston to Ontario that include hotel bookings?

    Yes. In addition to deals on Kingston to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kingston to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kingston to Ontario.

  • Can I find deals for business class flights from Kingston to Ontario?

    Yes. Cheapflights offers flight deals from Kingston to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Kingston to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Kingston to Ontario (average of $246). Flying from Kingston to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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